The mining town of Kirwin, Wyo., once a thriving concern, held promise of gold and other riches during its heyday in the late 1800s, but went into decline in the early 1900s. The scenic beauty of the area drew aviatrix Amelia Earhart to the Double Dee Ranch nearby in the 1930s, but her dreams of a vacation cabin there were never realized.

In 1850, 19-year-old Alvah Unthank left Indiana to head to California with the Newport Mining Company. In late June, he carved his name at Register Cliff, but a few days later, he succumbed to cholera. His grave near present Glenrock, Wyo. is among the best preserved on the historic trails.

West of Rock Avenue on the Oregon Trail in what’s now central Wyoming, emigrant oxen often got stuck in an alkaline mire historians sometimes refer to as Clayton’s Slough, in memory of the Mormon diarist who called it “one of the most horrid, swampy, stinking places I ever saw.”

Before any contact with Europeans, Shoshone, Crow, Arapaho, Comanche, Cheyenne, Ute and Lakota people in what’s now Wyoming bartered with each other and more distant tribes for food, horses, guns and more in trade networks stretching from the upper Missouri to the Pacific and from Mexico to Canada.  

Oregon Trail emigrants faced high risks crossing the North Platte River near present Casper, Wyo. River crossings were extremely dangerous; operators of commercial ferries and bridges charged steep prices. Until bridges were built, many people and animals drowned in the swift, deep, shockingly cold water of the Platte.

Continuing the tradition of Buffalo Bill’s Wild West show, Lander-based producer Ed Farlow and Hollywood actor Tim McCoy recruited members of Wyoming’s Arapaho and Shoshone tribes to perform in 1920s silent movies and to tour Europe to perform on theatre stages before the movies were shown.

Early Oregon Trail travelers were enchanted by clear, cold water at Willow Spring, halfway between the North Platte and Independence Rock. But after traffic boomed with the 1849 gold rush, they were more often disappointed: Pioneers had cut down trees; livestock had eaten all the grass and muddied the water.

Poetry, shouts and song—year after year, reactions were similar when Oregon Trail emigrants managed the steep climb up Prospect Hill, also called Ryan Hill, on the road from the North Platte to Independence Rock. The sight of range after range of mountains greeted them—a sweeping view of new country.

Fifteen miles from Prospect Hill, Oregon Trail emigrants as they neared Independence Rock began passing shallow, sometimes dry lakes. If dry, the lake floors were encrusted with snow-white alkali—essentially baking soda—which the pioneers called saleratus. It worked well for raising bread baked over sagebrush campfires.

In August 1922, five U.S. Marines “invaded” the U.S. Naval Petroleum Reserve at Teapot Dome in central Wyoming to evict oil drillers the government had determined were there illegally. Bribery connected with acquiring those drilling rights eventually led to the Teapot Dome scandal—one of the worst in U.S. politics.